Home / 147,721.41-203,857.97-80,653.41

Finding the Fourth Proportional to 147,721.41, 203,857.97 and 80,653.41

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Solution

The fourth proportional to 147,721.41, 203,857.97 and 80,653.41 is: 111,303.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,721.41 : 203,857.97 = 80,653.41 : x
  2. Step 2: Convert to fraction form
    147,721.41/203,857.97 = 80,653.41/x
  3. Step 3: Cross multiply
    147,721.41x = 203,857.97 × 80,653.41
  4. Step 4: Simplify right side
    147,721.41x = 16,441,840,032.91
  5. Step 5: Solve for x
    x = 16,441,840,032.91/147,721.41
  6. Step 6: Final answer
    x = 111,303.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.